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- /* Copyright (C) 1989, 1992, 1993 Aladdin Enterprises. All rights reserved.
-
- This file is part of Aladdin Ghostscript.
-
- Aladdin Ghostscript is distributed with NO WARRANTY OF ANY KIND. No author
- or distributor accepts any responsibility for the consequences of using it,
- or for whether it serves any particular purpose or works at all, unless he
- or she says so in writing. Refer to the Aladdin Ghostscript Free Public
- License (the "License") for full details.
-
- Every copy of Aladdin Ghostscript must include a copy of the License,
- normally in a plain ASCII text file named PUBLIC. The License grants you
- the right to copy, modify and redistribute Aladdin Ghostscript, but only
- under certain conditions described in the License. Among other things, the
- License requires that the copyright notice and this notice be preserved on
- all copies.
- */
-
- /* gzstate.h */
- /* Private graphics state definition for Ghostscript library */
- #include "gxdcolor.h"
- #include "gxfixed.h"
- #include "gxmatrix.h"
- #include "gsstate.h"
- #include "gxdevice.h"
-
- /* Opaque types referenced by the graphics state. */
- #ifndef gs_font_DEFINED
- # define gs_font_DEFINED
- typedef struct gs_font_s gs_font;
- #endif
- #ifndef gs_halftone_DEFINED
- # define gs_halftone_DEFINED
- typedef struct gs_halftone_s gs_halftone;
- #endif
- #ifndef gx_device_halftone_DEFINED
- # define gx_device_halftone_DEFINED
- typedef struct gx_device_halftone_s gx_device_halftone;
- #endif
- #ifndef gx_transfer_map_DEFINED
- # define gx_transfer_map_DEFINED
- typedef struct gx_transfer_map_s gx_transfer_map;
- #endif
-
- /* Composite components of the graphics state. */
- typedef struct gx_transfer_s {
- gx_transfer_map *red;
- gx_transfer_map *green;
- gx_transfer_map *blue;
- gx_transfer_map *gray;
- } gx_transfer;
-
- /* We allocate a large subset of the graphics state as a single object. */
- /* Its type is opaque here, defined in gsstate.c. */
- /* The components marked with @ must be allocated in the contents. */
- typedef struct gs_state_contents_s gs_state_contents;
-
- /* Graphics state structure. */
-
- struct gs_state_s {
- gs_state *saved; /* previous state from gsave */
- gs_memory_t *memory;
- gs_state_contents *contents;
-
- /* Transformation: */
-
- gs_matrix_fixed ctm;
- #define ctm_only(pgs) *(gs_matrix *)&(pgs)->ctm
- gs_matrix ctm_inverse;
- int inverse_valid; /* true if ctm_inverse = ctm^-1 */
-
- /* Paths: */
-
- struct gx_path_s *path;
- struct gx_clip_path_s *clip_path; /* @ */
- int clip_rule;
-
- /* Lines: */
-
- struct gx_line_params_s *line_params;
-
- /* Halftone screen: */
-
- gs_halftone *halftone;
- gx_device_halftone *dev_ht;
- gs_int_point ht_phase;
- struct gx_ht_cache_s *ht_cache; /* shared by all GCs */
-
- /* Color (device-independent): */
-
- struct gs_color_space_s *color_space;
- struct gs_client_color_s *ccolor;
- gx_color_value alpha;
-
- /* Color (device-dependent): */
-
- struct gs_cie_render_s *cie_render;
- int overprint;
- gx_transfer_map *black_generation; /* may be 0 */
- gx_transfer_map *undercolor_removal; /* may be 0 */
- gx_transfer transfer;
-
- /* Color caches: */
-
- gx_device_color *dev_color;
- struct gx_cie_joint_caches_s *cie_joint_caches;
- const struct gx_color_map_procs_s *cmap_procs;
- struct gx_pattern_cache_s *pattern_cache; /* shared by all GCs */
-
- /* Font: */
-
- gs_font *font;
- gs_font *root_font;
- gs_matrix_fixed char_tm; /* font matrix * ctm */
- #define char_tm_only(pgs) *(gs_matrix *)&(pgs)->char_tm
- int char_tm_valid; /* true if char_tm is valid */
- byte in_cachedevice; /* true after a setcachedevice */
- byte in_charpath; /* 0 if not in charpath, */
- /* 1 if false charpath, */
- /* 2 if true charpath */
- /* (see charpath_flag in */
- /* gs_show_enum_s) */
- gs_state *show_gstate; /* gstate when show was invoked */
- /* (so charpath can append to path) */
-
- /* Other stuff: */
-
- int level; /* incremented by 1 per gsave */
- float flatness;
- fixed fill_adjust; /* fattening for fill */
- int stroke_adjust;
- gx_device *device;
- #undef gs_currentdevice_inline
- #define gs_currentdevice_inline(pgs) ((pgs)->device)
-
- /* Client data: */
-
- void *client_data;
- #undef gs_state_client_data_inline
- #define gs_state_client_data_inline(pgs) ((pgs)->client_data)
- gs_state_client_procs client_procs;
- };
- /* The structure type is only public for testing. */
- extern_st(st_gstate);
- #define public_st_gstate() /* in gsstate.c */\
- gs_public_st_composite(st_gstate, gs_state, "gstatetype",\
- gs_state_enum_ptrs, gs_state_reloc_ptrs)
-